Glass-drawing apparatus



.A. E. SPINASSE.

GLASS DRAWING APPARATUS. APPLICATION FILED APR. 16, 1914.

1,343, 1860 Patented June 8, 1920.

3 SHEETS-SHEET I.

WITNESSES: W 7 BY [Oh/M9 7W/MWMFV% %EYS A. E. SPINASSE.

GLASS DRAWING APPARATUS.

APPLICATION FILED APR. 16. I914.

Patented June 8, 1920.

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3 SHEETSSHEET 2.

WITNESSES A. E. SPINASSE.

GLASS DRAWING APPARATUS.

APPLICATION FILED APR. I6. 1914.

Patented June 8 1920.

a SHEETS-SHEET a.

INVENTOR.

j BY ATTORNEYS.

' WITNESSES:

ARTHUR E. SPINASSE, 0F MOUNT VERNON, OHIO.

GLASS-DRAWING APPARATUS.

iterates.

Specification of Letters Patent.

I Patented June 8, 1920.

'lhriginal application filed May 24, 1911, Serial No. 629,121. Divided and this application filed April 16, 1914:. Serial No. 832,315.

To all whom it may concern Be it known that I, ARTHUR E. SPINASSE, a citizen of the United States, residing at Mount Vernon, in the county of Knox and State of Ohio, have invented certain new and useful Improvements in Glass-Drawing Apparatus, of which the following is a specification.

This invention relates to improvements in glass drawing apparatus and the process and has among its objects to provide a means for drawing glass cylinders from a pot or tank of molten glass and handling such cylinders in a very efficient manner with very little breakage.

This case is a division of my application Serial No. 629,121, filed May 24,1911, entitled Glass drawing apparatus, 'and my present invention relates to certain features among which are, a relation of simultaneous control between the quantity'controlling air valve and the pressure controlling means; variable automatic simultaneous control of speed of draw and feed of air in the drawing device; the pivoted tilting frame for taking down a cylinder and the bait supported thereon so as to swing on a pivot I parallel to the frame pivot; an air conduct ing support for the baitprovided with laterally extending projections; besides other features.

In the drawings, Figure 1 is a front ele-.

vation.

Fig. 2'is a side elevation showingthe measuring scale hereinafter referred to.

Fig. 3 isanother side view of the apparatus, showing my tilting frame projecting above the zone of draw.

Fig. 4: is a top view of the apparatus. Fig. 5 is a detail front elevation showing means for efiecting my simultaneous automatic control of speed of draw and feed of air. Fig. 5 shows means for supporting the bait to swing on a horizontal axis.

Fig. 6 is a side view showing the appa- -.ra tus of Fig. 3, in its horizontal position after the cylinder has been lowered to such position. v

Figs. 7 and 7 are detail sectional views ofpart of the connections between the air 1 supply pipe and the pipeleading to the bait.

gs. 8, 8 and 8 are detail views of the automatic device for controlling the air pressure and drawing speed. Figs. 9 and 9* represent modifications of such automatic control means.

Referring to Fig. l-the framework of my drawing apparatus is shown as comprising two upright standards 20 which are pivoted at their base at 21 so as to be capable of Around this Windlass extends a rope 27 which is attached to the carriage 22 so that the operation of the motor and Windlass raises and lowers the carriage.

Over a stationary pulley 30 there extends a rope 31 which is attached to an arm 32 extending forward from the frame. The giving of slack on this rope 31 permits the entire frame to be tilted downward upon its pivotal points 21, until it assumes the horizontal position shown in Fig. 6, or any oblique position.

Referring to Fig. 1 again, the pot 33 containing the molten glass, is shown, with the glass cylinder 34: extending above the same in its drawn position. The bait 35 of any desired form, is connected by the air pipe 36, to a bent pipe 37. restin or, preferably as shown in ig. 5, upon an extension pipe or pipes 37 which in turn rest upon, and are supported to swing on an axis parallel to the frame axis or pivot up by the air conducting pipe supports 38, the ends of said .pipe supports 38 being rounded or otherwise shaped in conformity with the ends of the pipes 37", to permit this swinging. This permits the swinging movement of the bait carrying the cylinder so that as the frame is lowered the cylinder comes gradually to rest upon the arms 40' on said frame, the pipe 36 or handle com-.

upon pipe 38 ing a ainst and resting upon spring sup- 1 It. is desira 1e to have some means for supporting the glass cylinder during its downward tilting movement. For this purpose I provide the tilting frame provided with the movable cylinder supporting arms 5 40 which, connected to the operating rod 41,

are-arranged to swing in and support the cylinder during the downward movement of the tilting frame. The rod 41 provided with spring 42 and head 43 is pushed when it engages plate 44 so as to swing arms 40 into cylinder supporting position. i may, however, provide instead, supports X throughout of a size adapted to the cylinder.

The taking down'frame may be of the angular shape shown in Fig. 3 so that it may be tilted to position over thetank 33 after hood 50 has been withdrawn, though it obviously is adaptable to receptacles of i any form. a

A generator 51 supplies current through conductors 52, 53 to the motor 24, suitable controllers and switches being, of course, provided.

The means for putting speed of draw and supply-of air in controlled relation to each other, as well as the means for putting air supply and air pressure in cylinder in controlled relation to each other, may now be explained.

Air supply and control pipes 66 (Fig. 1)

lead to a common joint 61 atthe lower part of the apparatus. From there a vertical pipe 62 leads up to a central point of the frame, from whence a flexible tube 63 extends upward to a pipe 64 mounted on the drawing carriage 22. 'The. purpose of the flexibility of the pipe 63 and. of the aforesaid electric wires 53,- is tov permit the up and down movements of the drawing car- A riage and at the same time .retain the connection of the electric wires and of the air supply pipes in any position of the carriage. The aforesaid air pipe 64 isconnected with a delivery pipe 65 which extends downward into proximity with' a slip-collar 66 whichfits down over the upper end of the pipe 67 extending upward from 'a pipe 68' which "is connected with the previously described pipe 38. This slip collar '66 is the air conduit. This arm 70 may-belocated so as to be within reach of theoperator fo adjustment of the handle or arm 70 ether manual or automatic. Such adjustment will effect corresponding adjustment of the'collar or sleeve66. and v1ce versa. This cross arm 70 may also be connected to the J speed of draw-confrollingdevices and is'at shown in detail in Figs. 7 and 7. It is attached. to link 69 which is adjustably pinned to a cross arm 70 fixed to a valve in operating link 73 extends upward, and is attached to a sliding arm 74 to the outer end of whichis pinned the operating roller 75. This operating roller is acted upon by the beveled or cam-shaped heads 76 of adjust- 70 able pins 77 which are carried by the side support 20 of theframel Means whether manual or automatic, for eifecting independent control of speed of draw, and means for efi'ecting independent control of air supply, are regarded as features of my case Serial No. 629,121 above referred to.

In Fig. 8 a number of these pins 77 are shown and the operation of these parts is as follows: 80

When the drawing carriage 22' is lifted upward, the air pressure within the cylinder is controlled through the air pipes 62, 63, 64, and 65. In Fig. l, the slip collar 66 is shown out of contact with the overlying 35 pipe 65, but more or less air may be forced down through the pipe 65, into the pipes 67,

i 68, 38, 37and into the interior of the glass cylinder. The depth to which the pipe 65 extends into the movable collar 66, as shown 0 in Figs. 7 and 7*, controls the effect of the air pressure or suction, as to the transmission of the same into the interior of the cylinder. That is, when the collar isin its lower position of Fig. 7, the effect would 5 not be so pronounced as when the parts are more closely coupled as in Fig. 7' the connection or joint being loose as shown.

Now the extent of movement or of coupling of the collar 66 to the pipe 65, is'controlled by the rocking of the cross arm 70. When the right-hand end of the cross arm 70 (Fig. 1), is lifted, the collar 66 is lifted, whereby air pressure in the cylinder is increased as the quantity of air supplied is increased. Similarly thelowering of this right-hand end of the cross arm 70 puts the parts into position shown in Fig. 7 or Fig. 1, and correspondinglyregula'tes the pressure.

Similarly as to the opposite end of said cross arm '70, the raising and lowering of the arm, operates through the link 71 to control the rheostat 54, and this operates the motor 24 with greater or less speed. The result is thereby to cause the lifting of the drawing carriage at greater or less speed, which is a thing which has to be done in the drawing of cylinders in this-manner to get the necessary conditions of thickness, etc. to the glass cylinder.

' All this control of the air supply and drawing speed may be automatically elfected a by the, carriage itself, according to its posi-(Q tiom This is efi'ected by a controller and takes place in the followingm'anner. The

adjustable pins 77 which constitute the controller and form the contour of a cam-are set at different places on the supporting frame 20 and are screwed horizontally in 76 into difl'erent alinement with the operating roller 75. Thus when said roller strikes one or the other of said cam-heads 76, the arm 74 is automatically thereby adjusted horizontally. This moves the controlling arm 73 back and forth so as to rock the cross arm 70 about its central pivotal point.

I thus establish mutual control between speed of draw and feed of air.

In Figs. 9 and 9 a modified form of this automatic controlling device or cam' is shown, in the shape of a continuous flexible band 80 upon the opposite faces of which there impinge two rollers 81 connected with aforesaid operating arm 74;. The vertical position of this band is controlled by adjustable set pins 82, so that the band may be given various shapes, one of which is shown in Fig. 9. Thus as the drawing carriage ascends, the flexible band 80 causes the rollers 81 to draw the arm 74 horizontally backward and forward to secure the necessary control of the lifting speed or the air pressure. It will of course be understood that the band -80 is intended to be of suflicient rigidity of structure to operate the controlling arm 74 in this manner but at the same time to be capable of fiexure by the pins 82 for the purposes mentioned.

It may be stated that the point of'adjustment of the air supply pipe at the pin 61, also the point of adjustment of the lead wires 52, to the frame, is at approximately the pivotal point 21 of said frame so that the tilting of the frame from vertical to horizontal position may take place without affecting these electric wires or air supply pipes. j v

I have shown two forms of devices, one for drawing glass from a pot, and the other for drawing glass from a tank. The latter is shown in Fig. In this the lower portion of the frame is so constructed, and the angle is such, that though fulcrumed outside the tank, the frame projects over the glass in the tank, as indicated at 20*. One important feature which is characteristic of a frame of this shape, is that when the frame is lowered to horizontal position it will rest far enough away from the furnace to afford a safe distance from the drawing pot for further treatment of the glass.

While the forms' of mechanism herein shown constitutes a preferred form of embodiment of the improvements, it is to be understood that the invention is not limited to the precise details of construction,con-

tinuation and operation herein shown and described but it is capable of embodiment in other forms coming Within the scope of the claims which follow.

What is claimed is as follows:

1. In apparatus for drawing glass cylinders, in combination,a drawing device, a pivoted frame upon which said device is mounted, an air conduit, a bait, a pipe leading to the bait, branches provided-with open' ings, on said 'pipe, and sockets provided with openings, at the end of the conduit,

the arrangement being such that the bait, when hung by its branches in said sockets, is supported to swing about a line parallel to the line of the frame pivot, at the same time affording passage of air from the conduit to the bait.

2. An apparatus for drawing glass cylinders, said apparatus comprising a drawing element, an air supply conduit leading to said element, said conduit provided at its end with air conducting supports for said bait,a hollow bait, and a pipe therefor constructed with laterally extending air conducting projections, whereby said pipe may be removably sustained upon said supports, and, through said supports and projections, make air connections with said conduit.

3. In an apparatus for drawing glass cylinders, a frame pivoted to swing on a horizontal axis, a bait, and a movable support for the bait carried by the frame and arranged to constrain the bait to swingingscribed, a tiltable frame, a bait, and means.

forming a movable support for the bait in connection with the frame to permit the bait to swing with respect to the frame, said means being arranged to limit such swinging movement to a direction approximately at right angles to the frame.

In testimonyv whereof I hereby afiix my signature in presence of two witnesses.

ARTHUR E. SPINASSE. Witnesses LoUIs'DnT InR,

P. L. WALKER, 

